SSL/TLS Certificate Lookup
Check a domain's SSL/TLS certificate — who issued it, when it expires, and whether the chain is trusted
ajc-germany.org
SSL/TLS Certificate
SSL/TLS Certificate for ajc-germany.org
Self-signed- Issued by (CA)
- ajc-germany.org.df-477537.dummy
- Subject
- ajc-germany.org.df-477537.dummy
- Valid from
- Sep 10, 2025
- Valid until
- Sep 10, 2026 (expired 26 days ago)
- Public key
- RSA 2048-bit
- Serial
- 01D5942422
- SHA-256 fingerprint
- C9:64:25:E7:60:C6:DE:54:1B:96:19:7E:D3:0D:1B:21:25:07:79:8B:20:E2:E6:3A:3E:65:9B:BF:49:5C:E3:4D
- Chain
- ajc-germany.org.df-477537.dummy
Certificate Authority Authorization (CAA)
No CAA policy is published for this domain — any certificate authority may issue for it.
Never get surprised by ajc-germany.org's certificate expiring
This is today's certificate. Turn on monitoring and we'll watch ajc-germany.org continuously, notifying you the moment anything moves across all three signals:
Uptime
We visit the site from multiple regions worldwide and email you within minutes if it goes down, with a per-region breakdown so a real outage stands out from a regional blip.
DNS changes
We watch NS, MX, CAA, DNSSEC, CNAME and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.
TLS certificate
We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.
Free for your first domain: uptime, DNS, and certificate together. No credit card.